Adaptive fast intra mode decision of depth map coding by Low Complexity RD-Cost in 3D-HEVC

Hong Bin Zhang, Chang Hong Fu, Wei Min Su, Sik Ho Tsang, Yui Lam Chan

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

13 Citations (Scopus)


The coding efficiency of 3D-HEVC can be improved significantly by adopting more intra modes in depth map coding, including up to 35 conventional HEVC intra prediction modes and 4 depth modelling modes (DMMs). However, traversing these modes dramatically results in unendurable high complexity. In this paper, we propose an efficient intra mode decision algorithm by taking advantage of the Low Complexity Rate-Distortion Cost information in the rough mode decision. Only one conventional intra mode and several most probable modes are then selected for most cases adaptively based on the threshold derived from the prior probability. Experimental results show that the proposed algorithm provides about 34% saving in terms of the total depth coding time with little drop of the coding performance compared with the state-of-the-art algorithm.
Original languageEnglish
Title of host publication2015 IEEE International Conference on Digital Signal Processing, DSP 2015
Number of pages5
ISBN (Electronic)9781479980581
Publication statusPublished - 9 Sep 2015
EventIEEE International Conference on Digital Signal Processing, DSP 2015 - Singapore, Singapore
Duration: 21 Jul 201524 Jul 2015


ConferenceIEEE International Conference on Digital Signal Processing, DSP 2015


  • 3D-HEVC
  • depth map coding
  • intra prediction
  • multi-view videos plus depth
  • rough mode decision

ASJC Scopus subject areas

  • Signal Processing

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